Heating tool



1,602,397 H. E. DOW I HEATING TOQL Filed March 9, 1922 Ami-N70 otherwise shaping HARRY E. now, or BEVERLY,MASSACHUSETTS, ASSIGNOR To nnrrnn snon MA- CHINERY conrona'rron, or rarnnson, nnw JERSEY, A'CORPORATION or new JERSEY.

HEATING iroon Application filed March 9, 1922. Serial No. 542,318.

This invention relates to machines for finishing shoes by ironing and smoothing them against their enclosed last-s, and to devices for heating shoe-engaging tools such as the ironing or smoothing tools of such machines, and it is herein illustrated as embodied ina machine of the general type disclosed in Patent No. 1,331,613, granted Feb. 24:, 1920, on an application filed by'C. M. Bradford and R. C. Simmons. 7

In the machine illustrated in the aboveidentified patent, an ironing tool is arranged to be reciprocated against a shoe by a cam 0r beater roll for removing wrinkles and shoes, more especially turn shoes, againstthe enclosed lasts. This operation isof considerable importance in the manufacture of turn shoes after the insertion of the second lasts, inasmuch as the turning of the shoe unavoidably distorts and wrinkles the shoe materials to a greater or less extent. I v

In the arrangement of'the machine shown in the said patent, the shoe engaging tool is heated by a gas flame. An object ofv the present invention is to substitute an electric heating device with its attendant advan-' tages of cleanliness and uniformity. of heat. it has previously been proposed to heat tools of this general character by yieldingly mounting a recessed block containing an electric heating unit so that it will be urged into sliding engagement with the tool to conduct heat thereto. Previous devices of this character, however, have been constructed and arranged to urge such a block about a fixed aXis so that careful fitting of the cooperatively-engaging parts of the tool and the block is necessary full surface engagement. Thus if either the block or .the tool is not accurately mounted, orfif one ofthem is, not carefully machined to form a true plane surface, or if one of them wears in such a manner as to become uneven, inany of these cases the sliding surface engagement between the tool and the block is lost and there is only a line engagement which decreases materially the efficiency of the conduction of the heat.

According to the present invention these difficulties are obviated by providing, in combination, with the shoe engaging tool of such-.1 machine, a heatedblock or other member which. is mounted to more in ing tools which have in order to secure a' ent , an embodiment of a manner as to be held in substantially complete surface sliding engagement with the tool regardless of the exact relative position of the tool'mounting and the mounting for the block. ,As illustrated the block is connected to a br'acketmounted on the machine frame by spring means which provides a universal mounting for'the block in such a manner that it may'tilt about any axis which may be required in order to provide for such a substantially complete surface engagement.

Such a mounting for a heat transfer'ring,

block is not only advantageous in compeneating for inaccuracies in the relative mountof the tool and theblock, and in eliminating the, necessity for carefully machin- [ing the engaging surfaces and for automatically compensating for unequal wear, but it 'is-especially well adapted for use in heat- I a compound motion. Itw ould be extremely difficult to mount tools of this character so accurately that anyone surface wouldremain constantly in the same plane and consequently they are most efficiently heated by a'block mounted in accordance with my invention so that it may automatically adjust 'tself to the position of the tool. H v

From a somewhat different point of view my invention may be regarded'as providing a universal mounting for aheat-conducting member which can be made'up in quantities as a stock heating device and applied to any one of a number of machines becausejof its capability of automatic adjustment to conform the position of the heat conducting member to that of the tool which is to be heated thereby. 1 a

Utherfeatures of my invention are to be found in a tool for use in a type illustrated in the above-identified patand which is both rubbed and pounded against a shoe, and i parent from the following description of my invention illustrated in the attached drawings, in which Fig. 1 is a side tion, of a portion of a machine of the type shown in the above-identified patent with the improved'device for conducting heat ape plied'thereto; and

Fig. 2 is a detaehedperspective the machine of the 4 I in various combinations" and specific constructions which will be ap-.

elevation, partly i shoe-engaging tool and the improved device for conducting heat thereto.

The machine illustrated in the attached drawings comprises generally a shoe engaging tool 10, illustrated as an ironing tool for use in smoothing out shoes which have been turned and relasted; a rotary shaft 12 and connections therefrom to operate the tool; and a heated member or block 14 in engagement with a surface of the tool to conduct heat thereto.

In order to secure in an eliicient manner the advantages of rubbing and pounding the tool against the work as described in the above-identified Bradford and Simmons patent, there is provided an improved mounting for the tool according to which it is arranged for av sliding motion in a sleeve 16 mounted for oscillation about a shaft- 18 journaled in the frame of the machine. On one side of this sleeve is formed an arm 20, to which is connected a lever 22 oscillated back and forth during the operation of the-machine by a strap 24 surrounding an eccentric :26 mounted on one end of shaft 12. Operation of the eccentric 26 results in short rapid oscillations of the sleeve 16 which impart rubbing motions of the tool 10 back and forth in engagement with a shoe. At the same time the tool is rapidly vibrated or pounded against the shoe by means of percussional impulses inrparted thereto by a series. of beater rolls or earns 28 mounted concentrically with respect to shaft 12 in the eccentric 26. means, each time the tool 10 is given one back and forth rubbing motion it is given a series (as for example 7) v of percussional impulses in a direction substantially perpendicular to the work. A pin is inserted through coo-operating holes in the machine frame and through a slot in the tool 10 to prevent the tool from dropping out of the sleeve 16. The pin 30 normally holds the tool just belowthe path of the rolls 28 so that when a shoe is pressed upwardly against the tool it will be moved into engagement with these cams or rolls in order to be operated on thereby.

The block 14 is illustrated as being re cessed to contain an electric heat ui p and according to an important feature of my'invention it is connected to bracket by a floating mounting such that the bloclr' can tilt automatically about, any required axis in order to maintain full surface engagement with the co-operating portion of tool 10. Thus the necessity for accurate machining is diminished and arrangement is made for automatic compensation for wear, formovement of the tool in such a manner as to cause departure of the block surface from its original plane, and for variations in the relative positions of the tool and bracket 34.

By this In the illustrated embodiment this floating mounting comprises pluigers 36 seating in cup-shaped depressions in block 14 and yieldably urged into these depressions to hold the block against the tool by means of springs 40 engaging collars 49. on the pl'ungers and held under compression by a stop 44. Stop 44 is connected to braclret 34 by means of a bolt 46 and is adjustably movable thereon in order to vary the tension of prings .40 by turning the nut 48.

By this improved arrangement,- it willbe observed that block 14is freely tiltable about an axis passing through the bottom of depressions 38 and that it may tilt about any other axis against a greater or less resistance from springs 40. Thus for example block 14 may move'bodily; and it may also tilt about a vertical axis, or about a horizontal axis parallel to its tool engaging surface, or about a horizontal axis perpendicular to its tool engaging surface,-in fact the block-14 is held against tool 10 by. a universal mounting which will cause auto matic adjustment regardless of the exact position of the tool.

As above noted this type of mounting is not only advantageous forpartieular vibrating tools cially those Whichhave a compound motion, but it is also well adapted for use as a stock device which may be made up in quantities and applied to any one of a number of. nachines, since there is no necessity for accurate fitting of the deviceto each machine in View of the automatic character of the adjustment of the heated block 14 to conform its position to the position of the tool which it is to heat.

lVhile myvinvention has been. described as embodied inthe type of machine illustrated in the above-identified patent it is not my intention to limit its scope thereby or otherwise than by the terms of the appended claims. 7

Having described my invention, what I claim as new and desire to secure by Let ters Patent of the United States is 1. In a machineof the class described, in combination, a movable shoe-engaging member, andmeans to heat said member comprising a heated block and a universal mounting therefor allowing the block to adjust itself about an 7 required axisto conform to the position of said member and be held in sliding contact therewithj V a 2. In a machine of the class described, in combination, a reciprocable shoe-treating tool, and means to heat the tool comprising a heated member anda yielding mounting therefor permitting botht-ilting and nontilting movement of said member to adjust it to, the position of the tool and hold it in sliding engagement therewith.

3. In a machine of the class described,

of the character illustrated, BS1381,

= parallel to the in combination,

- position of thetool combination,

" in combination, a reciprocable shoe-treating tool, and means to heat the tool comprismg a heated member and a yielding mounting therefor permitting tilting about an axis direction of movement of the tool. and about an axis at right angles to the direction of movement of the tool to adjust it to the position of the tool and hold it in sliding engagement therewith. I

4 111 a machine of the class described, a movable shoe making tool, and means to heat the tool comprising a heated block arranged to tilt about any one of a plurality of axesto conform to the and be held in sliding engagement therewith.

5. In a machine of the class described, in combination, a movable shoe-engaging tool, and a heated thereof and be held in sliding engagement therewith. v I j w 6. Ina machine of the class described, in a movable shoe-engaging tool, a heated member to transmit heat thereto, and springs urging said member into engagement therewith, said member being mounted to allow it to tilt about any one of a plurality of axes to conform to the position of the tool.

'7. In a machine of the class described, in

combination bodily and angular movements in sliding 51 engagement therewith to transmit heat thereto.

vision for relative movement between the block and the plunger and block against the tool.

9. In a machine of the class described, in

to press the combination, a movable shoe-engaging tool,

a recessed block to containan electric heat unit and to conduct heat therefrom to said tool, and yielding means urging said block against the tool and allowing it to tilt and also to change its position bodily without tilting to conform to the position of the tool.

10. In a machine of the class described, in combination, a movable shoe-engaging tool, a recessed block to carry an electric heat unit and conduct tool, a plurality of plungers engaging the block, and a separate spring urgingeach plunger against the block so that the plungcrs may yield independently to allow the block to conform its position to the position of the tool.

11. In a machine of the class described, in combination, a movable shoe-engaging tool, a recessed block to carry an electric heat block mounted for uni-. versal movement to conform to the position a movable shoe-engaging tool,, and a heated block capable of independent heat therefrom to said.

unit-and conduct heatuther'efrom to said tool, a plurality of plungers engaglngtne block, a separate spring urging each plunger against the block so that theplungersmay] yield independently to allow the block to the position of the conform its position to tool, and means to vary the tension of the springs. i

' 12. In a machine of the class described, in combination, a movable "shoe engaging tool, a recessed block to contain an electric heat unit and conduct heat therefrom to the tool, and a mounting therefor adaptedto permit tiliting of the block about a plurality of axes and comprising springs arranged to resist tilting of the block about an axis parallel to the direction ofmotion of the tool andto urge the block against the tool. -13. In a machine of the class described, in combination, a' movable shoe-engaging tool, a recessed block to contain an electric heat unit and conduct heat therefrom-to the tool, and a plurality of plungers urging the block toward the tool and arranged to allow universal: motion of the block, said plungers being .mounted for'independent yielding.

- I LQIn a machine of the class described,

in combination, a movable shoe engaging tool, means to heat the tool comprising a heating unit adapted slidingly to engage the tool, and a support for the heating unit, the support being relatively stationary with respect tothe tool and connected with the heating unit to permit free relative movement between unit. v 1 15,111 a machine of the'class described, in combination, a movable shoe engaging tool, and a heated block in sliding engage ment therewith and freely tiltable about an axis perpendicular'to a direction of motion of the tool and also tiltable about a second axis against a yielding resistance to adjust the block for varying positions of the tool.

the support and the heating 6; For mounting on anyone of several machines-used n manufacturing shoes, a stock tool-heating device comprising a recessed' block tocontain an'electric heat unit,

a bracket to be attached to a machine frame,

and a universal connection between the bracket and the block arranged automatically to adjust the position of the block to the position of the tool to be heated, to secure asurface sliding engagement between the block and the tool regardless of tilting movements of the tool about different axes.

17 For mounting on any one of several machines used in manufacturing shoes, a stock tool-heating device comprising a recessed block to contain an electric heat unit, a bracket to be attached to a machine frame, and a spring connection'between the bracket and the block allowing the block to move bodilv and to tilt about a plurality of axes Q to bring about a sliding surface engagement betweenthe block and atool. to be heated thereby." V r, v

18'. In a machine of the class described, in. combination, 'a shoe engaging tool, a heating device for conducting heat to the tool, means to exert pressure upon the heating device in such a manner as to support it and hold it in frictional engagement with the tool and means to vary and to controlthe amount of pressure exerted 19. In a machine of the class described, in combination, a movable shoe-engaging tool, a recessed blockto contain a heat unit and: transmit heat therefrom to the tool, said-11110015 being formed with a cup-shaped depression in the outer surface opposite to the tool, and a plunger yieldingly held in the depression to hold'the block inplace and to urge. it-into engagement with the tool while allowing ready removal of the block.

20. In a machine of the class described, in combination, a movable shoe-engaging tool, a heated block in sliding engagement therewith, a: plungerconnected to the block by a universal joint to allow it to adjust its positionto that of the tool, and a spring actg "on-theplunger to ur-gethe block against theto'ol. i r

21.11 amachine of the class described, in combination, a movablesho'e engaging tool, a" movable guide therefor to control the path "of movement. of the tool, means to move the tool in the heguide, means for moving said guide to impart additional movement to the tool,,and a heated block automatically to vary its position t'oremain in sliding surface engagement with the tool.

22. In a machine of the class described, in combination, a shoe engagingtool slidingly and angularly movable, a heated block to be held in sliding engagement therewith: and transmit heat thereto, and amounting for the block permitting it automatically to vary its position by tilting about a plurality of axes to maintain the block in engagement with the tool.

23; in a machine of the class described, in combination, a shoe-engaging tool movable to vary the position of its surfaces, a

heatedbloch to be held'in sliding engage ment with onesurtace thereof to transmit,

heatto; the tool,

and a mounting for the block allowing it automatically tovary its maintain the part short rapid path determined by position both by bodily movement and i111;

tilt; automatically about a plurality of axes az'cordin to the positionof the tool to I block in sliding surface engagement therewith. I Y 1 In a machine oi thecla'ss described, in con'ibination, a movable tool to engage a shoe, means to move the tool back and forth in rubbingengagement with the shoe, means to impar; percussional impulses to the tool in a direction substantially perpendicular to the surface of the shoe, and a heating member held in sliding surface engagement with said tool. 1 v

26.111 a machine of the class described, in combination, a movable tool, a rotary shaft, :1 co nection :t'ion the shaft to imvibrations to the tool to move it back and forth in rubbing engagement with shoe, an auxiliary connection to impart pei'cussional impulses to thetoo'l in a direction substantially pe'rpendicular'to the surface of the shoe, and'a he'atingvmember held in sliding surface "engagement with said tool.

27. 111 a machine of thcfclassfdescribed,

in combination, a shoe -engagingto'ol, means to rub the t'ool against a shoe and smutaneously to pound it against thefslio'e', a heated block, and a mounting allowing the block a universal movement and holding it in surface sliding engagement with the tool to conductheat thereto. v I l 28. In a machine or the class described, in combination, an ironing tool. to a shoe, a inechanically-operate'd, lever to move the tool back and forth in rubbing engagement with a shoe, acam to impart a series oil percussional impulses to th'e tool during each back and forth movement, and a heating block held in gagement with said tool and freely tiltah le relativelythereto; V I I In testimony whereof'l' have signed my name to this specification. r g I nannrn. Dow.

Sliding surface eii- 

